4pl companies are specialized firms that manage not only the logistics and transportation of goods but also oversee the entire supply chain for their clients. Unlike 3PL companies, which typically focus on transportation and warehousing, 4PL companies take a more comprehensive approach by integrating different aspects of the supply chain, including procurement, inventory management, and even technology solutions. This model is often beneficial for larger businesses or those with complex logistics needs. A 4PL provider acts as a single point of contact for managing all logistics-related functions and provides strategic oversight to improve efficiency and reduce costs.